Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-10-06
J.Phys.A40:10337-10348,2007
Physics
High Energy Physics
High Energy Physics - Theory
9 pages, RevTeX4, references added, small changes in the text
Scientific paper
10.1088/1751-8113/40/33/024
We study a system of electrons moving on a noncommutative plane in the presence of an external magnetic field which is perpendicular to this plane. For generality we assume that the coordinates and the momenta are both noncommutative. We make a transformation from the noncommutative coordinates to a set of commuting coordinates and then we write the Hamiltonian for this system. The energy spectrum and the expectation value of the current can then be calculated and the Hall conductivity can be extracted. We use the same method to calculate the phase shift for the Aharonov-Bohm effect. Precession measurements could allow strong upper limits to be imposed on the noncommutativity coordinate and momentum parameters $\Theta$ and $\Xi$.
Harms Benjamin
Micu Octavian
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